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Integrally-formed composite core body and preparation method thereof

A composite core, integrated technology, applied in the fields of medical science, clothing, underwear, etc., can solve the problems affecting the water absorption rate of the core body, increase the cost, etc., and achieve the effect of high core body utilization rate, production cost saving, and gel blocking reduction.

Pending Publication Date: 2021-06-04
HANGZHOU HAOYUE INDAL
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Too much glue will not only increase the production cost, but also inhibit the water absorption expansion of the superabsorbent resin in the core, thus affecting the overall water absorption rate of the core

Method used

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  • Integrally-formed composite core body and preparation method thereof
  • Integrally-formed composite core body and preparation method thereof
  • Integrally-formed composite core body and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0032] The integrally formed composite core is applied to disposable hygiene products. The composite core includes an upper covering layer 1, a first fluffy layer 3, a glue spray layer 5, a second fluffy layer 4 and a lower covering layer 2; the upper covering Layer 1 and lower cladding layer 2 areal density is 20g / m 2 , made of 20% low-melting fiber PE / PP and 80% wood pulp; the surface density of the first fluffy layer 3 and the second fluffy layer 4 is 15g / m 2 , made of a mixture of 25% three-dimensional curly polyester and 75% low-melting fiber PE / PP; the surface density of each layer of super absorbent resin particles contained in the fluffy layer is 45g / m 2 , the width of the first upper liquid guide groove 311 in the first upper superabsorbent resin particle 31 is 1 cm, the distance is 1.5 cm, and the acute angle between the horizontal direction and the horizontal direction is 30 °, the second upper super absorbent resin particle 32 The width of the second upper liquid ...

Embodiment 2

[0034] The integrally formed composite core is applied to disposable hygiene products. The composite core includes an upper covering layer 1, a first fluffy layer 3, a glue spray layer 5, a second fluffy layer 4 and a lower covering layer 2; the upper covering Layer 1 and lower cladding layer 2 areal density is 40g / m 2 , made of 40% low-melting fiber PE / PET and 60% wood pulp; the surface density of the first fluffy layer 3 and the second fluffy layer 4 is 30g / m 2 , made of 35% three-dimensional crimped polyester and 65% low-melting fiber PE / PET; the surface density of each layer of super absorbent resin particles contained in the fluffy layer is 50g / m 2, the width of the first upper liquid guide groove 311 in the first upper superabsorbent resin particle 31 is 1.5 cm, the distance is 3 cm, and the acute angle between the horizontal direction and the horizontal direction is 45 °, the second upper super absorbent resin particle 32 The width of the second upper layer liquid guid...

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Abstract

The invention discloses an integrally-formed composite core body structure which comprises an upper core body coating layer, a lower core body coating layer, a first fluffy layer, a second fluffy layer and a glue spraying layer located between the two fluffy layers. The upper coating layer and the lower coating layer of the core body are made of non-woven materials composed of wood pulp and low-melting-point fibers, the fluffy layers are made of non-woven materials composed of three-dimensional crimp polyester fibers and low-melting-point fibers, each fluffy layer contains two layers of different high-water-absorption resin particles, liquid guide grooves with a specific number and a specific arrangement mode are formed in each layer of high-water-absorption resin particles, and the coating layers and the fluffy layers are fused and then consolidated together through low-melting-point fibers contained in the coating layers and the fluffy layers. The composite core body structure applied to disposable hygienic products disclosed by the patent application has the beneficial effects that the utilization rate of the composite core body can be greatly improved and the liquid absorption performance can be improved in a three-dimensional space staggered combination mode of a double-fluffy-layer framework and the liquid guide grooves; and meanwhile, the upper coating layer and the lower coating layer which are formed by the wood pulp and the low-melting-point fibers replace traditional core body coating materials such as spunbond, spunlace and the like, so that the production cost is greatly saved.

Description

technical field [0001] The invention relates to a composite core body applicable to various disposable sanitary products such as diapers, paper diapers, sanitary napkins, panty liners and nursing pants, and belongs to the technical field of disposable sanitary products. Background technique [0002] At present, with the rapid development of social economy, people's living standards are getting higher and higher. Disposable sanitary products such as baby and adult diapers, sanitary napkins and nursing pads are also widely recognized by the public. Supplies are easier to get people's favor. [0003] The absorbent core is the core structure of these disposable sanitary products. At present, the composite core composed of non-woven material and super absorbent resin has gradually replaced the traditional core mixed with fluff pulp and super absorbent resin. The main structure of the composite core is upper and lower cladding layers and a fluffy absorbent layer in the middle. In...

Claims

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Application Information

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IPC IPC(8): A61F13/534A61F13/15
CPCA61F13/15577A61F13/534A61F2013/530131A61F2013/530167A61F2013/530481
Inventor 李志彪钟磊沈嘉俊
Owner HANGZHOU HAOYUE INDAL
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